DSPIC33FJ64MC204-E/PT Microchip Technology, DSPIC33FJ64MC204-E/PT Datasheet - Page 296

• Manufacturer Part Number: DSPIC33FJ64MC204-E/PT
• Description: 16-bit DSC, 64KB Flash,Motor, DMA,40 MIPS,nanoWatt 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ64MC204-E/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 9x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Package: 44TQFP
• Device Core: dsPIC
• Family Name: dsPIC33
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 35
• Interface Type: I2C/SPI/UART
• On-chip Adc: 9-chx10-bit|9-chx12-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164335 - MODULE SKT FOR 10X10 PM3 44TQFPDV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24.1
24.1.1
The voltage reference module is controlled through the
CVRCON register (Register 24-2). The comparator
voltage reference provides two ranges of output
voltage, each with 16 distinct levels. The range to be
used is selected by the CVRR bit (CVRCON<5>). The
primary difference between the ranges is the size of the
steps
(CVR3:CVR0), with one range offering finer resolution.
FIGURE 24-2:
DS70291D-page 296
V
AV
REF
selected
DD
Comparator Voltage Reference
CVREN
+
CVRR
V
AV
CONFIGURING THE COMPARATOR
VOLTAGE REFERENCE
REF
SS
-
by
CVRSS = 1
CVRSS = 0
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
the
CV
REF
CVRSS = 1
CVRSS = 0
16 Steps
Selection
CV
8R
R
R
R
R
R
R
R
RSRC
Preliminary
bits
8R
The comparator reference supply voltage can come
from either V
V
bit (CVRCON<4>).
The settling time of the comparator voltage reference
must be considered when changing the CV
output.
REF
CVRCON<3:0>
-. The voltage source is selected by the CVRSS
DD
CVRCON<CVROE>
and V
SS
© 2009 Microchip Technology Inc.
, or the external V
CV
CV
REFIN
REF
REF
+ and
REF